Electrification pole



Oct. 16, 1928. v cT M. GOODRICH ELECTRIFICATION POLE 2 Sheets-SheetlFiled Fey?, 192,5

Oct. 16, 1928. 1,687,979

c. M. G ooDRlcH ELECTRIFIGATION POLE Filed Feb. 7, 1925 2Shes;13s-Sheet. 2

patented` ct.; 16', i y l uurrsuv STATES CHAUNCEY'iviansireoomtica orWINDSOR, 'oNTfAa1o,eANADA. ELECTRIFIGATION POLE. A I Y Y iApplicationfiled February `7,` 11925,'7Svera1 No. 7,5-82, and in CanadaDe'cember 9,V1924. f

This invention relates tosupports for outer ends, and a pairl ofhorizontally spaced wires, cables or other electric current conlowerchord members 22 rigidly secured to ductors, and more particularly totowers or the pole at their Vvinner'ends, as at 25 and poles forcarrying the overhead catenary converging towards a pointat their outere construction of electrified railways and they ends beyond the pointtowards whichr said like, and has for its object` the provision ot upperchord` members converge. A 'series of A towers or poles of this classthat are so de. lacing members 28 extend between and con signed thatthey will carry stresses from the IIQC Sd'UpPeI" and 10WI` Chord,members point of support to the pole in a plurality so as to form, ineffect, two substantially verin of planes. l tical trusses, one of whichforms each side of 65 Another object is to provide a polehaving saidarm. A. blockBO, preferably composed the novel construction, arrangementand of impregnated Y wood or other insulating combination of partshereinafter described material', is rigidly secured between saidvsubandillust-rated in the accompanying drawstantiallyvertical trusses formedby lacing f. ings, f j said upper and lower chord members. Y The 70 inthe drawings: y vblock 30 is secured to said trusses at the outerTfigure 1 is a side elevation of' an electrifiendr and at least onepanel point by bolts 29, cation pole fitted with my improved load sothat loads and torsions delivered to'said carrying arm. f block in anydirection and in any plane will Figure Q'is a front elevation. becarrie-d by said arm to said tower kas 75 Figure 3V is a top plan viewofthe 'load"axialstressesin the members composing said carrying armshowing the wooden block. arm. g

Figure 4lis a top plan view of an` arm for The insulating block 30 isprovided with carrying telephone wires. 'Y Y v the usual insulators 31to support the usual Figure 5 is a planview of the lower flangemessenger cables or other support of the 80 of the arm. l voverheadconstruction yof .electric railways.V

Figure 6 is a perspective detail ofthe vFrom the above it will bereadily apadjusting mea-ns'for the pole to raiseit or preciated that themain feature of my inlower it. 'vention is lthe support of theinsulating Referring now more particularly'to vthe' block in such amanner that a vertical load 35 drawings, the numeralr 1() designates themay be imposed upon it at any point withpole comprising a skeletonstructure having out causingA other thanV axial stresses in the fourvertically extending' posts v11. This members :forming the yarm 20.A .lAnother pole is of well-.known construction and profeature of myinvention is the support of the vided with the brace members 13. At itsinsulating block in suchv a manner that aV o0 lower end it is designedto be set in the horizontal' or other inclined or non-vertical groundencased in a concrete foundation 15. load may be applied toit at anylpoint with-V As illustrated in the accompanying draw#` out causing otherthan axial stresses in the ings, the pole is formed in two sections 16rmembers forming. the arm. f I

40 and 17 adapted, as illustrated in Figurel 5, While I have shown anddescribed only'o to slidably engage with one another. `The onespecificembodiment of my invention, it lower section 17 is provided witha plurality vwill be understood vthat I do not wish to be of aperturesl,which are in turn adapted to limited thereto, since variousmodifications register with apertures 19 in theupper secmay be madewithout departing from the tion le whereby thek upper section is raisedscope of my invention as defined in the apleo or lowered, the apertureslbeing designed to pended claim'. receive therethrough suitable securingI'claim: n means. In a device ofthe character described Coming now tothe essential feature of my and'in combination, a pole, a cantilever arminvention, this consists in the combination vsupported on said pole,said arm comprising 105 with a suitable pole or tower construction, apairl of horizontally spaced upperv chort of a cantilever arm 2Ocomposed of a pair of members rigidly secured to the' pole at theirhorizontally spaced upper chord members 21 inner 'ends rand yconvergingtowards their rigidly secured to theipole at their inner outer ends, apairk of khorizontally spaced ends, as at 26, and converging towardstheir` ,lower chord members rigidlysecured to the 110 y.

' pole at their inner ends and converging towards a point at their outerends beyond the point towards which said upper chord members converge,a. series of lacing members extending between and connecting said upperand lower chord members forming twoV substantially vertical trusses, ablock rigidly secured between said substantiall vertical trusses at theouter end andat least one panel point of said trusses, so that loads'10* and torsions delivered to said block in any direction and in anyplane will be carried by said arm to said pole as axial stresses 1n theoHAUNoEY MARSH GooDRioH.

